package day15;

public class LeafTest {
    public static void main(String[] args) {
        new Leaf();
        System.out.println("*************************");
        new Leaf();
    }
}


class Root{
    static {
        System.out.println("Root的静态初始化块");
    }

    {
        System.out.println("Root的普通初始化块");
    }

    public Root(){
        super();
        System.out.println("Root的无参数的构造器");
    }

}


class Mid extends Root{
    static{
        System.out.println("Mid的静态初始化块");
    }

    {
        System.out.println("Mid的普通初始化块");
    }

    public Mid() {
        super();
        System.out.println("Mid的无参数的构造器");
    }

    public Mid(String msg) {
        // 通过this调用一类中的重载的构造器
        this();
        System.out.println("Mid的带参数构造器,其参数数值: "+msg);
    }
}


class Leaf extends Mid{
    static{
        System.out.println("Leaf的静态初始化块");
    }
    {
        System.out.println("Leaf的普通初始化块");
    }

    public Leaf() {
        // 通过super调用父类中有一个字符串参数的构造器
        super("尚硅谷");
        System.out.println("Leaf的构造器");
    }
}
